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14m ago

Tsunami Advisory Canceled After 7.3-Magnitude Earthquake Off Alaska Peninsula

Authorities lifted the alert after recording only a 0.2-foot wave at Sand Point, confirming no major damage; agencies continue monitoring aftershocks, with coastal sea levels under close watch.

An aerial view over Sand Point, Alaska.
WATCH: Powerful 7.3-Magnitude Earthquake Rocks Alaska Peninsula, Frightening Video Captures Moment Houses and Cars Tremble | Image: Alaska Earthquake Centre
Image
A strong earthquake Wednesday off the Alaska coast triggered a tsunami warning. (AP Graphic)

Overview

  • The U.S. Geological Survey recorded the 7.3-magnitude quake on July 16 at a depth of 20.1 kilometers, centered about 54 miles south of Sand Point.
  • The National Tsunami Warning Center issued a warning for coastal areas from Kennedy Entrance to Unimak Pass, then downgraded it to an advisory before canceling the alert.
  • A minor tsunami wave of just 0.2 feet was measured at Sand Point and no significant damage has been reported in coastal communities.
  • More than a dozen aftershocks followed the main quake, including one measuring magnitude 5.2, prompting ongoing seismic and sea-level monitoring.
  • Emergency officials and scientific agencies are urging residents to review local evacuation protocols and stay prepared for any further activity.